New Reprocessed Seismic Improves Karst Conduit Modelling in Carbonate Buildups

The presence of karst in carbonates, as in Central Luconia Province, affects directly their volumetric, flow properties and drilling. Using broadband emphasized pre-processing and advanced multiple elimination methods, the reprocessing of the 3D seismic in the present study area has resulted in significant improvement in image quality, allowing the interpretation of 32 new faults. The interpretation of these faults has considerably improved reservoir characterization, namely: 1) a new volume based modelling technique allowed the integration of all these faults in the static model, preserving the structural complexity, and 2) a karst conduit modelling was performed along these faults, using object-distance simulation method, and integrated in the static model. This seismic-driven reservoir characterization could well be a key success factor for future field development and well target optimization.